Here are some pictures of RESxGSF hybrids. I'm culling these out of my RES/SMB pond. It was supposed to have only SMB and pure RES but I made some mistakes with the identification of some fingerlings that were moved from my forage pond. Had lots of RES as well as RESxGSF fingerlings raised in that pond and a few of the hybrids I mis-identified as pure RES and got Transferred to the RES/SMB pond by mistake. I think my problem was with the under 3" fish I transferred.
Anyway, I really like these RESxGSF hybrids, just not in that particular pond. I been putting them into the adjacent old pond where I hope they will get bigger.
I remove them because they compete with my SMB yearlings for food. Have caught quite a few just like the ones in the pictures. They are easy to catch, unlike their pure RES cousins in this pond. They go after the same baits the 9-12" SMB I target for transplanting into other ponds.